Stream XML to HttpWebRequest

[C# Programming]

Hi,

I need some help in finding the best way to stream the content of an XML file to a HttpWebRequest. This needs to be streamed as the xml contains a Base64 Encoded zip file. The XML is encoded using UTF-8 if this makes a difference? Previously I was just using

byte[] byteData = Encoding.UTF8.GetBytes(requestInfo.XML);

but this was under some circumstances causing me a OutOfMemory exception. I cant send the actual file so cant stream the file. What is the best way to stream the UTF8 xml data to the HttpWebRequest.

Thanks

Stu